Listed below are all of the LoC and ACI entries I've found that pertain to Infantry Equipment, Pattern 1914. If anyone knows of any others, please send me copies for inclusion in this section.
LoC 16977 Infantry Equipment, Pattern 1914 - New Patterns. 30th Aug 1914
Introduces Infantry Equipment, Pattern 1914.
LoC 17177 Infantry Equipment, Pattern 1914 - New Patterns. 21st Jan 1915 / 8th Mar 1915
Adds Pistol case, Pistol cartridge case, and Dirk loop.
LoC 17219 Infantry Equipment, Pattern 1914 - Modification of Patterns. 31st Dec 1914 / 30th Mar 1915
Various modifications to designs.
LoC 17220 Infantry Equipment, Pattern 1914 - Belts, Waist. 9th Apr 1915
Adds "extra-large" size Waist belt.
LoC 17599 Infantry Equipment, Pattern 1914 - Patterns Modified. 25th Nov 1915
Changes all tabs and chapes on Haversacks and Packs to web.
LoC No. 17660, Web equipment, pattern 1908 - Covers, mess tin. dated 31st October 1915
Extends the use of the Patt. '08 Mess tin cover to Patt. '14
LoC 17698 Infantry Equipment, Pattern 1914 - Attachments, Brace. 24th December 1915
Adds Brace attachments.
LoC 20642 Infantry Equipment, Pattern 1914 - Pattern Modified. 5th Feb 1918
Changes the Cartridge pouches from one to two straps.
Removes Pattern 1914 from service with regular units.
Approves use of Pattern 1914 Bayonet frogs.
Adds Linesman's Pouches.